package com.atguigu.common.validator;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

/**
 *  自定义校验器
 * @author Guo 2022/9/2 14:28:39
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {

    private Set<Integer> set = new HashSet<>();

    /**
     * 初始化方法
     * @param constraintAnnotation
     */
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] values = constraintAnnotation.values();
        for (int val : values){
            set.add(val);
        }
    }

    /**
     * 判断是否校验成功
     * @param value 需要校验的值
     * @param constraintValidatorContext
     * @return
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext constraintValidatorContext) {
        return set.contains(value);
    }
}
